Automatically-closing float-valve apparatus.



AUTOMATICALLY CLOSING FLOAT VALVE APPARATUS.

(Application filed. Feb. 19, 1900.)

(no Medel.)

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WMM/mj, ATTORNEY UNITED STATES' lATENT'A OFFICE.Y

ALEXANDER FISCHER, oF NEw YORK, N. Y.

AUToMATlcALLv-cLoslNe FLoAT-vALvsIAPPARATus.

SPECIFICATION forming'part of Letters Patent No. 659,391, dated October 9, 1900.

Application filed February 19, 1900. Serial No. 5,767. Kllo model.)

To all whom t may concern/.z

Be it known thatl, ALEXANDER FISCHER, a citizen of the United States of America, and a resident of New York city, county of New York, State of New York, have invented certain new and useful Improvements in Automatically-Closing Float-Valve Apparatus, of which the following is a specification. Y

My invention relates generally to floatvalves, and more specifically consists of an improved form of auto1natically-closing oatvalve apparatus for use on gasolene-tanks for automobile vehicles.

Gasolene being a liquid of great lightness will leak through a valve unless it is extremely tight. The ordinary form of valve cannot be made tight enough to prevent gasolene from passing through without rendering it liable to stick, especially under the jarring and twisting to which it would be subjected if used on an automobile. Itis especially difficult to construct a valve composed of metal working on metal which will avoid both of these difficulties. To overcome these and other difficulties, I have invented a form of iioat-valve, the preferred construction ofY which is illustrated in the accompanying sheet of drawings, in which- Figure lis a plan View of the tank and valve apparatus, and Fig. 2 is a vertical central section thereof.

Throughout the drawings like referencegures refer to like parts.

Atank l, of sheet-iron or other suitable Inaterial, of any convenient shape has an inletpipe 2 and an outlet-pipe 3. In this tank is the oat 4, mounted on the lever 5, pivoted to the tank at 6 or any other convenient Way. The float 4 and lever 5 together form the ordinary float-lever. From the lever 5 extends the projection 5a, in which is a threaded opening through which .the adjusting-screw 7 extends. The end of this adj usting-screw terminates in a ball 8, with which the corresponding socket 9 of the plate 10 cooperates. The plate 10 is arranged opposite the end of the inlet-pipe 2 and constitutes a plunger-plate for closing said inlet-pipe. Preferably this plunger-plate is provided with a facing 11 of some yielding waterproof material, such as rubber, leather, or other suitable substance. Proper lthe end of the inlet-pipe 2 and closes the same. The mouth of said inlet-pipe is preferably trued up in a plane approximately at right angles to the position of the float-lever when the valve is closed and the adjustingscrew 7 is preferably arranged approximately parallel to the lever 5'. The plunger-plate 10, being mounted on a universal joint, will of course adjust itself easily to a tight fit against the mouth of the inlet-pipe when the iloat has risen to the predetermined position and the inlet will be tightly closed. At the same time no matter how great the pressure with which the plunger is forced against the inletpipe it will not stick there. The moment the fluid-line falls below the predetermined point -in the tank the inlet-pipe will promptly open.

The point at which the valve will close may jbe adjusted by turning the adj listing-screw 7 in or out, and the plunger-plate 10, being mounted on a universal joint, will adj ust itself to the inlet-pipe opening wit-l1 equal facility in all positions of the adj usting-screw.

Among the advantages of the invention may be mentioned the fact that the valve always closes tightly and opens readily, and this with equal facility whatever the point of adjustmentof the apparatus as a whole..

Moreover, no matter how great the pressure exerted in closing the valve before the flow of liquid is ultimately stopped t-he valve cannot stick, but will open freely the moment the fluid-level falls again.

Itis evident, of course, that various changes could be made in the details of construction illustrated without departing from the spirit and scope ofnny invention so long as the relative arrangement of parts or the principle of operation described is preserved. Other means of adjusting the valve might be substituted for the adjusting-screw shown and different forms of universal joint might be employed. The inlet-pipe might be differently located inthe tank so long as the other parts were arranged to coperate there- IOO ever, I still consider Within the scope of my invention. l

Having therefore described my invention, what I claim as new, and desire to protect by Letters Patent, is-

1. In a, float-valve the combination ofv the rank, the inlet-pipe therefor, the float-lever, and the valve-plunger adapted to close the inlet-pipe, Said plunger being,r mounted on the float-lever by a univers-il joint.

2. In :i floatwalve the combination of the tank, the inlet-pipe therefor, the ioat-lever, and the valve-plunger adapted to close the inlet-pipe, Said plunger being mounted on the oat-lever by a universal joint, and consisting of a fiat plate with a facing of yielding,r 

